开缝钢板墙简化模型研究  

Research on Simplified Model for Steel Plate Wall with Slits

作　　者：贺旻斐[1] 蒲康国[2] 金华建[1] 孙飞飞[1,3] 

机构地区：[1]同济大学土木工程学院,上海200092 [2]宝山钢铁股份有限公司,上海201900 [3]同济大学土木工程防灾国家重点实验室,上海200092

出　　处：《建筑钢结构进展》2010年第4期38-45,50,共9页Progress in Steel Building Structures

基　　金：国家科技支撑计划项目(2006BAJ01B02);国家自然科学基金重大研究计划项目(90815029);上海市科技攻关计划(09dz1207704)

摘　　要：开缝钢板墙是一种用于高层建筑的钢结构抗侧力构件。为便于其在实际工程中建模和分析,本文提出了3折线轴力-变形关系的简化交叉支撑模型,用于模拟两边连接开缝钢板墙的受力变形性能。对6个两边连接开缝钢板墙试件进行了数值模拟,验证了该简化模型的合理性;在一个设置有开缝钢板墙的5层框架结构体系中使用交叉支撑模型,并进行拟静力推覆计算,验证了该简化模型的可行性;还在该体系中使用了单斜撑简化模型,得到的结构体系的基本周期、破坏模式、结构塑性铰出现位置等结果与交叉支撑模型一致,而交叉支撑模型能更合理地反映框架梁的弯矩分布。As a kind of lateral force resistant component for high-rise buildings of steel structures, steel plate walls with slits have been applied in the actual structures. But it is hard to get such systems generalized for its difficulty of modeling and seeking convergence results. In this paper a simplified cross brace model with three-line axial force-deformation curve is presented to simulate the behavior of steel plate walls with slits. Numerical simulation is conducted on six specimens, showing good accuracy of the proposed model in test analysis. This cross brace model is used in a five story frame for pushover calculation, comparing with a single brace model＇s results in terms of basic period, failure mode and the location of plastic hinges. And the distribution of bending moments in the beam is more reasonable if the cross brace model is used.

关 键 词：开缝钢板墙 简化交叉支撑模型 三折线轴力-变形关系 性能点 

分 类 号：TU392.4[建筑科学—结构工程] TU352.1